spectral-spacings.md
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Spectral spacings
- 2026-08-28 [Conjecture] Every mrly fractal spectrum tested clusters rather than repels, excluding GOE and GUE, and the claim is "more clustered than Poisson", not "Poisson": two unfolding maps, both Laplacians and two independent pipelines to 4096 nodes, with random-graph and square-lattice controls separating first; a from-scratch rebuild on the Menger sponge
level = 2cell graph (400 nodes), Sierpinskilevel = 5andlevel = 6, normalised Laplacian, a degree-12 polynomial unfolder and a20 x 20square-lattice control givesP(s<0.5) = 0.689for the sponge against GOE's1 - exp(-pi/16) = 0.17828,0.830for Sierpinskilevel = 6and0.594for the square lattice; the band0.44to0.57under one unfolder does not reproduce under a third, and the sponge spectrum is 61.25% repeated eigenvalues at1e-9, soP(s<0.5) >= 0.61is forced by degeneracy and GOE exclusion is a corollary of degeneracy rather than an independent measurement. Witness: lab/rs/spectral-spacings.